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Polyester Fiber 12mm

Fiberego’s Polyester Fiber 12mm is a premium virgin polyester fiber engineered specifically for secondary reinforcement in concrete. With excellent alkali resistance, uniform 12mm length, and superior dispersion, it significantly reduces plastic shrinkage cracks, boosts impact resistance, and extends the service life of concrete structures in demanding environments.

Normal Tensile Strength Polyester Fiber NTS PF-12

What Is Polyester Fiber 12mm?

Polyester Fiber 12mm is a monofilament synthetic fiber made from 100% virgin polyester resin. Cut to a precise 12mm length, it acts as micro-reinforcement that bridges micro-cracks and distributes stress evenly throughout the concrete matrix.

Thanks to its hydrophobic nature and high tensile strength, it maintains performance in harsh alkaline conditions inside concrete, providing long-term durability without corroding like steel fibers. It is an economical, easy-to-mix alternative to traditional reinforcement methods.

Technical Specifications of Normal Tensile Strength Polyester Fiber NTS PF-12

Item	Parameters
Composition	Organic dibasic acid and diol
Diameter	12-18μm
Length	3-25mm(Customized)
Melting Point	255-265℃
Tensile Strength	≥600MPa
Elastic Modulus	≥5.0GPa
Elongation	10-15%

Fiberego - A trusted Chinese leader in fiber production

Key Benefits of Polyester Fiber 12mm

Polyester Fiber 12mm delivers proven performance advantages that improve both fresh and hardened concrete properties while reducing overall construction costs and time.

Reduces Plastic Shrinkage Cracks by up to 90%

Forms a three-dimensional reinforcement network that controls early-age cracking caused by drying shrinkage and temperature changes.

Improves Impact and Abrasion Resistance

Increases surface toughness, making concrete ideal for industrial floors, pavements, and overlays subjected to heavy traffic and wear.

Enhances Flexural Toughness and Ductility

Absorbs energy and prevents brittle failure, allowing concrete to deform under load without sudden collapse.

Excellent Dispersion and Easy Mixing

Special surface treatment ensures clump-free distribution in the mix, saving time and delivering consistent performance every batch.

Corrosion-Free and Alkali-Resistant

Unlike steel fibers, polyester fibers never rust or degrade in the high-pH environment of concrete, ensuring lifelong reinforcement.

Cost-Effective Alternative to Wire Mesh

Eliminates labor-intensive placement of mesh, reduces formwork damage, and speeds up pouring and finishing operations.

Top 4 Applications of Polyester Fiber 12mm in Construction

Polyester Fiber 18mm is ideal for reinforcing concrete where durability, crack resistance, and structural performance are required. Suitable for new construction, repair, industrial flooring, and prefabricated components.

Industrial Floors

Provides superior resistance to heavy forklift traffic, impact loads, and joint spalling while minimizing curling and cracking.

Shotcrete and Tunnel Linings

Increases adhesion, flexural strength, and energy absorption for safer, longer-lasting sprayed concrete applications.

Precast Concrete Elements

Improves handling strength, reduces breakage during demolding and transport, and enhances final product quality.

Overlays and Pavements

Extends service life of roads, bridge decks, and parking areas by controlling reflective cracking and improving fatigue resistance.

Request a Free Sample

See the difference yourself. Contact us today for a complimentary sample of Polyester Fiber 12mm and detailed technical data sheet.

Why Choose Fiberego as Your Polyester Fiber Supplier?

With over 15 years of specialization in synthetic concrete fibers, Fiberego combines cutting-edge technology with reliable supply to support your projects worldwide.

Certified Quality

ISO 9001 & CE Certified Quality: Consistent performance backed by international standards.

Customizable Solutions

Tailored lengths, deniers, and packaging to match your mix design.

Expert Support

Dosage recommendations and on-site assistance from experienced engineers.

Reliable Supply

Large stock and efficient logistics ensure on-time supply.

Competitive Pricing

Direct factory pricing with no middlemen.

Best Sellers

High Tensile Strength Polyester Fiber HTS PF-12

Fiberego’s High-quality Polyester Fiber 12mm boosts concrete strength, crack resistance, and durability. Ideal for industrial, transportation, and precast concrete applications.

Normal Tensile Strength Polyester Fiber NTS PF-15

Fiberego’s Ordinary Polyester Fiber 15mm enhances concrete strength, crack resistance, and durability. Ideal for industrial, transportation, and precast concrete applications.

Normal Tensile Strength Polyester Fiber NTS PF-18

Fiberego’s PET Fiber 18mm improves concrete strength, crack resistance, and durability. Perfect for industrial, transportation, and precast concrete applications.

Fiberego Factory – Built for Excellence

Our state-of-the-art manufacturing facility spans 30,000 m² and uses fully automated European production lines to guarantee precision, consistency, and traceability in every kilogram of fiber we produce.

Advanced Virgin Polyester Extrusion

High-speed lines with real-time quality monitoring produce uniform monofilaments with exact tensile strength and diameter control.

Precision Cutting & Surface Treatment

Automated cutting units and proprietary coating technology ensure perfect 12mm length and superior bonding with cement paste.

Rigorous Quality Control Laboratory

Every batch undergoes tensile testing, dispersion tests, alkali resistance checks, and third-party verification before shipment.

Contact Us

Ready to reinforce stronger, longer-lasting concrete? Get in touch with our team for technical data, dosage recommendations, pricing, or a free sample.